Achatella achates

Formation: Rust formation,Trenton group NY
Age: Ordovician
Size: 2.7 cms

Comments:

Beautiful Achatella achates, this trilobite is from the classic Walcott-Rust formation.The complete examples are rare to find, in this trilobite is more often to find just the cephalon.In this fossil you can apreciate the long genal spines, and the eyes over the cephalon.